Download Rogue Audio Ninety-Nine Specifications

Date: 9/24/03
THE ROGUE AUDIO MISSION...
At Rogue Audio we design and manufacture vacuum tube amplifiers.
There is fierce competition in this market and we will only survive by
delivering a superior product and superior service - we have the
engineering and managerial talent to do so. Our core competencies are
electrical, mechanical and production engineering, along with an
overarching passion for excellence. These skills will be used to create
products that offer outstanding value in the high-end marketplace.
Rogue Ninety-Nine
Vacuum Tube Preamplifier
Owners Manual
Rogue Audio amplifiers will always be engineered to provide the four
key elements of audio value:
•
superior sonics
•
high quality and reliability
•
an outstanding appearance
•
an affordable price
Our philosophy is simple - We will never design any amplifier that we
would not purchase for ourselves.
Rogue Audio Inc.
PO Box 1076
3 Marian Lane
Brodheadsville, PA 18322
Vacuum Tube Amplifiers
Limited Warranty –You must return your warranty card!
Warranty Period
This product has been manufactured under the highest standards of quality and
workmanship. Rogue Audio Inc. (hereinafter “Rogue Audio”) warrants this product
against defects in material or workmanship as follows:
TABLE OF CONTENTS
1) Introduction
1
2) Setting up your preamplifier
1
3) Operating your preamplifier
5
4) Maintenance
7
5) If there’s a problem
7
6) Specifications
8
7) Warranty
9
With the exception of vacuum tubes, Rogue Audio warrants to the consumer all
parts of this product against defects in material and workmanship for a period of
three years from the date of retail purchase. Rogue Audio warrants the vacuum
tubes for a period of six months from the date of retail purchase. Any defective parts
will be replaced free of charge, excluding shipping and handling.
Proof of purchase in the form of a bill of sale, receipt or invoice which indicates
that the product is within the warranty period must be presented to obtain warranty
service. Rogue Audio suggests that the purchaser retain the dealer’s bill of sale as
evidence of the date of retail purchase.
What’s Not Covered This warranty does not cover cosmetic damage or any
damage that results from product misuse, product abuse, installation error,
connection to an improper voltage supply, accident, improper maintenance,
alterations, modifications not authorized in writing by Rogue Audio, lightening,
power surges, or acts of God. Use of any other than Rogue Audio factory parts may
void this warranty. This warranty does not cover the cost of parts and labor that
would be otherwise provided without charge under this warranty, obtained from any
source other than Rogue Audio.
This warranty applies only to consumer use of this product and does not cover any
product that is used in any trade or business, or in an industrial or commercial
application.
This warranty is valid only in the United States.
YOUR RIGHTS
ROGUE AUDIO LIMITS ITS OBLIGATIONS UNDER ANY IMPLIED
WARRANTIES UNDER STATE LAWS TO A PERIOD NOT TO EXCEED THE
WARRANTY PERIOD. SOME STATES DO NOT ALLOW LIMITATIONS ON
HOW LONG AN IMPLIED WARRANTY LASTS, AND SOME STATES DO
NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS OR
EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES
YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY HAVE OTHER
RIGHTS WHICH MAY VARY FROM STATE TO STATE.
To Obtain Service
To obtain service, you must contact Rogue Audio and obtain a return authorization
number; the product must be delivered to Rogue Audio in its original packaging
prepaid at the following address:
Rogue Audio Inc.
PO Box 1076
3 Marian Lane
Brodheadsville, PA 18322
Rogue Ninety- Nine Owners Manual
Rogue Ninety-Nine Owners Manual
9
SPECIFICATIONS
Frequency Response
1 Hz -150kHz + 1dB
THD
< 0.1%
Gain - Line Stage
23 dB
Rated Output
1.5 V RMS
Maximum Output
50 V RMS
Dimensions
W- 18 ¼”, H- 5 1/8”, L- 14”
Power Requirements
115/230 V - 50/60 Hz
INTRODUCTION
Congratulations on your purchase decision! We at Rogue Audio
truly believe that our amplifiers and preamplifiers provide the
“smartest” value in high-end audio. If you have never owned a
vacuum tube preamplifier you will be thrilled by the silky-smooth
sound and incredible detail that only a tube preamp can provide. And
with your Rogue Audio product, you can be sure that you are getting
the very best in tube amplification. We at Rogue Audio are
extremely proud of our products and want you to enjoy them to their
fullest potential. So please, take the time to read through this short
manual so that you can be confident that you have set up your
amplifier properly.
SETTING UP YOUR PREAMPLIFIER
Tools required: #2 phillips head screwdriver and a clean glove
WARNING - This preamplifier produces voltages
that could cause injury or death. Never open the
preamplifier while it is plugged in, and always wait
at least one hour after turning the unit off to unplug
and open the unit. Lethal voltages can remain in the
electronics after the unit is unplugged
1) Opening the box - Carefully remove the preamplifier, power
supply and remote control from the box. It is important that you
retain the packing material and boxes in the event that the
amplifier ever needs servicing. The packing material and box
have been carefully designed to protect your valuable equipment
during shipping so you don’t want to throw them away!
Rogue Ninety-Nine Owners Manual
8
Rogue Ninety-Nine Owners Manual
1
2) Seating the Tubes – It is possible for the tubes to loosen in their
sockets during shipping. Using a glove or a clean dry cloth make
sure that the tubes are fully seated in their sockets as shown in
figure 1. Note the correct location and orientation of the tubes.
Cartridge
Loading
Replacing Tubes:
1) Remove the top cover.
12AX7
6 SN7
12AU7 -LG
12AT7-MG
12AX7-HG
h/l
Switches
2) Using a glove or cloth, carefully remove the tubes from their
socket.
WARNING: If unit has been powered up, you must
turn off the switch and wait at least one hour before
disconnecting the electrical cord. After doing so, the
unit may be unplugged and the top cover removed.
This time is required for dangerous voltages to
dissipate to ground.
3) It is recommended that a new set of tubes be obtained from
Rogue Audio. If tubes are obtained from another source, follow
the diagram in figure 1 for tube type.
Figure 1
LG - Low Gain – use “l” switch setting
MG - Medium Gain – use “h” switch setting
HG - High Gain – use “h” switch setting
4) Insert new tubes in sockets using a glove or cloth. See figure 1
for locations.
The optional all-tube phono section consists of two input tubes
(12AX7), a passive RIAA equalization section, and an output section
that can be configured in one of three gain levels to accommodate
different cartridge output levels. Using 12AU7 tubes in the output
amplification stage (the two tubes nearest the front of the unit)
provides an overall gain of approximately 63dB. This is very
satisfactory for moving magnet and moving coil cartridges with an
output over 1mV. In this configuration the two small switches on the
phono board should be in the “l” setting. An additional 10dB of gain
can be realized by replacing the 12AU7 tubes with 12AT7 tubes. In
this case the switches should be moved to the “h” position. This
configuration is recommended for cartridge outputs of 0.4mV and
Rogue Ninety-Nine Owners Manual
MAINTENANCE
The Rogue Ninety-Nine has been designed to provide many years of
enjoyable and reliable service. The greatest care has been taken to
select vacuum tubes that provide superior sound and ensure long life.
In addition, this unit utilizes a slow turn on feature that helps prevent
cathode stripping during power up. This feature will greatly increase
usable tube life.
2
IF THERE IS A PROBLEM
1) Check that all connections are secure, both main power cord and
Con A and Con B connections from power supply to preamp.
2) Check that all input and output signal connections are secure.
3) Ensure that all tubes are properly seated in their sockets.
4) Make sure that the power supply is not located too close to the
preamp, other components, or any cables.
5) If these do not resolve the problem, please call Rogue Audio
Technical Support on 570-992-9901.
Rogue Ninety- Nine Owners Manual
7
3) Switches and Controls - The Rogue Ninety-Nine is equipped
with the following controls
•
•
•
•
•
•
•
Volume - gain adjustment from 0- 23 dB
Gain - a variable gain adjustment for source and speaker matching.
Source - selects source material (CD, phono, tape, tuner, aux)
Power - on/off operation
Mute - leaves preamplifier on while muting output
Mono - combines left and right channels.
Record - must be pressed in while taping, isolates tape player when not
in use.
Note - Unlike many solid state amplifiers, the
Ninety-Nine preamplifier should not be left turned
on when not in use. To prolong tube life, turn off the
unit when not in use.
4) Remote Volume Control - The Rogue Ninety-Nine is equipped
with an analog remote volume control feature. The volume may
be adjusted manually using the knob on the front panel, or by
using the remote control provided.
up. 12AX7 tubes can also be used for even greater gain. It should
be noted however that very low noise tubes must be used in the first
gain stage (the two rear 12AX7 tubes) so that tube noise or “rush” is
kept to a minimum.
3) The cartridge loading is factory set for 47K ohms and 150pF of
capacitance. This is suitable for most moving magnet and
moving coil cartridges. Special cartridge loading can be ordered
from the factory or from your local dealer.
4) Connecting the power supply - Carefully plug the connectors,
Con A and Con B, coming from the power supply into the rear of
the preamplifier. See Figure 2. Connect the IEC end of power
cord to the power supply, and plug opposite end into
corresponding outlet.
Note: Be careful to ensure 3 and 6 pin sockets (Con
A and Con B respectively) mate to corresponding
plugs. See Figure 2.
Power
Supply
Note - Some noise may be heard when operating the
remote volume. This is normal and is a result of the
DC motor noise being picked up by the sensitive
audio circuitry during the volume change.
Con A
Note: This unit will not play for approximately 20
seconds after power on while tubes warm up.
Phono
Ground
Con
B
Output
Jacks
Input Jacks
Headphone Jack
Figure 2
Rogue Ninety-Nine Owners Manual
6
Rogue Ninety-Nine Owners Manual
3
4) Placement of the preamplifier - The preamplifier is the “brains“
of your system and will have the greatest number of
interconnects. Therefore, the preamplifier should be located
such that it is accessible for cabling between itself and all other
relevant pieces of equipment. NEVER place another piece of
equipment on top of the preamplifier and be sure to leave
adequate space (three inches or more) on the top, sides and rear
for airflow.
Note: The external power supply should be placed as
far away as possible from any other components or
cables.
5) Connections to other components - Connections are shown in
Figure 2. The input connections for source material (phonograph,
CD player, tuner, tape recorder) are made via RCA jacks on the
rear of the preamplifier. One pair of additional auxiliary jacks is
also available for line level sources (approximately 1 volt). A
five-way lug is provided for grounding the turntable to the
preamplifier. There is also a headphone jack provided on the rear
of the unit. The outputs to the power amplifier and tape recorder
are arranged to the right of the input jacks. Be sure to use high
quality interconnect cables - they do make a difference.
6) Polarity - The Rogue Ninety-Nine preamplifier is an inverting
amplifier (positive signal in gives negative signal out) so, for
best sound, care should be taken to ensure correct polarity at the
speaker terminals. If your power amplifier is also inverting (most
are not), then connect the positive (+) outputs of your power
amplifier to the positive (+) terminals of the loudspeakers and
the negative (-) outputs to the (-) negative loudspeaker terminals.
If your power amplifier is non-inverting, then connect the
positive outputs (+) of your power amplifier to the negative (-)
loudspeaker terminals, and the negative outputs (-) to the
positive (+) loudspeaker terminals. (Rogue Audio power
amplifiers are non-inverting.) If you are unsure as to the polarity
of your power amplifier, check the owner’s manual or contact
the manufacturer. If all else fails, try both connections and listen
to which sounds better (do this using several different recordings
as not all recordings are made with correct phase).
OPERATING YOUR PREAMPLIFIER
1) Delays- Note that the Rogue Ninety-Nine is equipped with a
slow turn-on feature that protects other equipment from
dangerous transients at turn-on as well as significantly
prolonging tube life. This feature is provided via several timing
circuits that allow the tube filaments to reach operating
temperature before turning on the high voltage supply. The
outputs are muted during this sequence and then opened after
turn-on transients have been safely dissipated to ground.
2) Powering up the system - First turn on the preamplifier by
pushing in the “power” button. The red LED will light after
several seconds. After the heater filaments have warmed up
(approximately 15 seconds), the high voltage supply will turn on.
After an additional 15 seconds, the outputs will disconnect from
ground and the unit is ready to play. After turning on the
preamplifier, turn on the power amplifier and source material
and you are ready for listening.
Rogue Ninety-Nine Owners Manual
4
Rogue Ninety-Nine Owners Manual
5
4) Placement of the preamplifier - The preamplifier is the “brains“
of your system and will have the greatest number of
interconnects. Therefore, the preamplifier should be located
such that it is accessible for cabling between itself and all other
relevant pieces of equipment. NEVER place another piece of
equipment on top of the preamplifier and be sure to leave
adequate space (three inches or more) on the top, sides and rear
for airflow.
Note: The external power supply should be placed as
far away as possible from any other components or
cables.
5) Connections to other components - Connections are shown in
Figure 2. The input connections for source material (phonograph,
CD player, tuner, tape recorder) are made via RCA jacks on the
rear of the preamplifier. One pair of additional auxiliary jacks is
also available for line level sources (approximately 1 volt). A
five-way lug is provided for grounding the turntable to the
preamplifier. There is also a headphone jack provided on the rear
of the unit. The outputs to the power amplifier and tape recorder
are arranged to the right of the input jacks. Be sure to use high
quality interconnect cables - they do make a difference.
6) Polarity - The Rogue Ninety-Nine preamplifier is an inverting
amplifier (positive signal in gives negative signal out) so, for
best sound, care should be taken to ensure correct polarity at the
speaker terminals. If your power amplifier is also inverting (most
are not), then connect the positive (+) outputs of your power
amplifier to the positive (+) terminals of the loudspeakers and
the negative (-) outputs to the (-) negative loudspeaker terminals.
If your power amplifier is non-inverting, then connect the
positive outputs (+) of your power amplifier to the negative (-)
loudspeaker terminals, and the negative outputs (-) to the
positive (+) loudspeaker terminals. (Rogue Audio power
amplifiers are non-inverting.) If you are unsure as to the polarity
of your power amplifier, check the owner’s manual or contact
the manufacturer. If all else fails, try both connections and listen
to which sounds better (do this using several different recordings
as not all recordings are made with correct phase).
OPERATING YOUR PREAMPLIFIER
1) Delays- Note that the Rogue Ninety-Nine is equipped with a
slow turn-on feature that protects other equipment from
dangerous transients at turn-on as well as significantly
prolonging tube life. This feature is provided via several timing
circuits that allow the tube filaments to reach operating
temperature before turning on the high voltage supply. The
outputs are muted during this sequence and then opened after
turn-on transients have been safely dissipated to ground.
2) Powering up the system - First turn on the preamplifier by
pushing in the “power” button. The red LED will light after
several seconds. After the heater filaments have warmed up
(approximately 15 seconds), the high voltage supply will turn on.
After an additional 15 seconds, the outputs will disconnect from
ground and the unit is ready to play. After turning on the
preamplifier, turn on the power amplifier and source material
and you are ready for listening.
Rogue Ninety-Nine Owners Manual
4
Rogue Ninety-Nine Owners Manual
5
3) Switches and Controls - The Rogue Ninety-Nine is equipped
with the following controls
•
•
•
•
•
•
•
Volume - gain adjustment from 0- 23 dB
Gain - a variable gain adjustment for source and speaker matching.
Source - selects source material (CD, phono, tape, tuner, aux)
Power - on/off operation
Mute - leaves preamplifier on while muting output
Mono - combines left and right channels.
Record - must be pressed in while taping, isolates tape player when not
in use.
Note - Unlike many solid state amplifiers, the
Ninety-Nine preamplifier should not be left turned
on when not in use. To prolong tube life, turn off the
unit when not in use.
4) Remote Volume Control - The Rogue Ninety-Nine is equipped
with an analog remote volume control feature. The volume may
be adjusted manually using the knob on the front panel, or by
using the remote control provided.
up. 12AX7 tubes can also be used for even greater gain. It should
be noted however that very low noise tubes must be used in the first
gain stage (the two rear 12AX7 tubes) so that tube noise or “rush” is
kept to a minimum.
3) The cartridge loading is factory set for 47K ohms and 150pF of
capacitance. This is suitable for most moving magnet and
moving coil cartridges. Special cartridge loading can be ordered
from the factory or from your local dealer.
4) Connecting the power supply - Carefully plug the connectors,
Con A and Con B, coming from the power supply into the rear of
the preamplifier. See Figure 2. Connect the IEC end of power
cord to the power supply, and plug opposite end into
corresponding outlet.
Note: Be careful to ensure 3 and 6 pin sockets (Con
A and Con B respectively) mate to corresponding
plugs. See Figure 2.
Power
Supply
Note - Some noise may be heard when operating the
remote volume. This is normal and is a result of the
DC motor noise being picked up by the sensitive
audio circuitry during the volume change.
Con A
Note: This unit will not play for approximately 20
seconds after power on while tubes warm up.
Phono
Ground
Con
B
Output
Jacks
Input Jacks
Headphone Jack
Figure 2
Rogue Ninety-Nine Owners Manual
6
Rogue Ninety-Nine Owners Manual
3
2) Seating the Tubes – It is possible for the tubes to loosen in their
sockets during shipping. Using a glove or a clean dry cloth make
sure that the tubes are fully seated in their sockets as shown in
figure 1. Note the correct location and orientation of the tubes.
Cartridge
Loading
Replacing Tubes:
1) Remove the top cover.
12AX7
6 SN7
12AU7 -LG
12AT7-MG
12AX7-HG
h/l
Switches
2) Using a glove or cloth, carefully remove the tubes from their
socket.
WARNING: If unit has been powered up, you must
turn off the switch and wait at least one hour before
disconnecting the electrical cord. After doing so, the
unit may be unplugged and the top cover removed.
This time is required for dangerous voltages to
dissipate to ground.
3) It is recommended that a new set of tubes be obtained from
Rogue Audio. If tubes are obtained from another source, follow
the diagram in figure 1 for tube type.
Figure 1
LG - Low Gain – use “l” switch setting
MG - Medium Gain – use “h” switch setting
HG - High Gain – use “h” switch setting
4) Insert new tubes in sockets using a glove or cloth. See figure 1
for locations.
The optional all-tube phono section consists of two input tubes
(12AX7), a passive RIAA equalization section, and an output section
that can be configured in one of three gain levels to accommodate
different cartridge output levels. Using 12AU7 tubes in the output
amplification stage (the two tubes nearest the front of the unit)
provides an overall gain of approximately 63dB. This is very
satisfactory for moving magnet and moving coil cartridges with an
output over 1mV. In this configuration the two small switches on the
phono board should be in the “l” setting. An additional 10dB of gain
can be realized by replacing the 12AU7 tubes with 12AT7 tubes. In
this case the switches should be moved to the “h” position. This
configuration is recommended for cartridge outputs of 0.4mV and
Rogue Ninety-Nine Owners Manual
MAINTENANCE
The Rogue Ninety-Nine has been designed to provide many years of
enjoyable and reliable service. The greatest care has been taken to
select vacuum tubes that provide superior sound and ensure long life.
In addition, this unit utilizes a slow turn on feature that helps prevent
cathode stripping during power up. This feature will greatly increase
usable tube life.
2
IF THERE IS A PROBLEM
1) Check that all connections are secure, both main power cord and
Con A and Con B connections from power supply to preamp.
2) Check that all input and output signal connections are secure.
3) Ensure that all tubes are properly seated in their sockets.
4) Make sure that the power supply is not located too close to the
preamp, other components, or any cables.
5) If these do not resolve the problem, please call Rogue Audio
Technical Support on 570-992-9901.
Rogue Ninety- Nine Owners Manual
7
SPECIFICATIONS
Frequency Response
1 Hz -150kHz + 1dB
THD
< 0.1%
Gain - Line Stage
23 dB
Rated Output
1.5 V RMS
Maximum Output
50 V RMS
Dimensions
W- 18 ¼”, H- 5 1/8”, L- 14”
Power Requirements
115/230 V - 50/60 Hz
INTRODUCTION
Congratulations on your purchase decision! We at Rogue Audio
truly believe that our amplifiers and preamplifiers provide the
“smartest” value in high-end audio. If you have never owned a
vacuum tube preamplifier you will be thrilled by the silky-smooth
sound and incredible detail that only a tube preamp can provide. And
with your Rogue Audio product, you can be sure that you are getting
the very best in tube amplification. We at Rogue Audio are
extremely proud of our products and want you to enjoy them to their
fullest potential. So please, take the time to read through this short
manual so that you can be confident that you have set up your
amplifier properly.
SETTING UP YOUR PREAMPLIFIER
Tools required: #2 phillips head screwdriver and a clean glove
WARNING - This preamplifier produces voltages
that could cause injury or death. Never open the
preamplifier while it is plugged in, and always wait
at least one hour after turning the unit off to unplug
and open the unit. Lethal voltages can remain in the
electronics after the unit is unplugged
1) Opening the box - Carefully remove the preamplifier, power
supply and remote control from the box. It is important that you
retain the packing material and boxes in the event that the
amplifier ever needs servicing. The packing material and box
have been carefully designed to protect your valuable equipment
during shipping so you don’t want to throw them away!
Rogue Ninety-Nine Owners Manual
8
Rogue Ninety-Nine Owners Manual
1
Limited Warranty –You must return your warranty card!
Warranty Period
This product has been manufactured under the highest standards of quality and
workmanship. Rogue Audio Inc. (hereinafter “Rogue Audio”) warrants this product
against defects in material or workmanship as follows:
TABLE OF CONTENTS
1) Introduction
1
2) Setting up your preamplifier
1
3) Operating your preamplifier
5
4) Maintenance
7
5) If there’s a problem
7
6) Specifications
8
7) Warranty
9
With the exception of vacuum tubes, Rogue Audio warrants to the consumer all
parts of this product against defects in material and workmanship for a period of
three years from the date of retail purchase. Rogue Audio warrants the vacuum
tubes for a period of six months from the date of retail purchase. Any defective parts
will be replaced free of charge, excluding shipping and handling.
Proof of purchase in the form of a bill of sale, receipt or invoice which indicates
that the product is within the warranty period must be presented to obtain warranty
service. Rogue Audio suggests that the purchaser retain the dealer’s bill of sale as
evidence of the date of retail purchase.
What’s Not Covered This warranty does not cover cosmetic damage or any
damage that results from product misuse, product abuse, installation error,
connection to an improper voltage supply, accident, improper maintenance,
alterations, modifications not authorized in writing by Rogue Audio, lightening,
power surges, or acts of God. Use of any other than Rogue Audio factory parts may
void this warranty. This warranty does not cover the cost of parts and labor that
would be otherwise provided without charge under this warranty, obtained from any
source other than Rogue Audio.
This warranty applies only to consumer use of this product and does not cover any
product that is used in any trade or business, or in an industrial or commercial
application.
This warranty is valid only in the United States.
YOUR RIGHTS
ROGUE AUDIO LIMITS ITS OBLIGATIONS UNDER ANY IMPLIED
WARRANTIES UNDER STATE LAWS TO A PERIOD NOT TO EXCEED THE
WARRANTY PERIOD. SOME STATES DO NOT ALLOW LIMITATIONS ON
HOW LONG AN IMPLIED WARRANTY LASTS, AND SOME STATES DO
NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS OR
EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES
YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY HAVE OTHER
RIGHTS WHICH MAY VARY FROM STATE TO STATE.
To Obtain Service
To obtain service, you must contact Rogue Audio and obtain a return authorization
number; the product must be delivered to Rogue Audio in its original packaging
prepaid at the following address:
Rogue Audio Inc.
PO Box 1076
3 Marian Lane
Brodheadsville, PA 18322
Rogue Ninety- Nine Owners Manual
Rogue Ninety-Nine Owners Manual
9
Date: 9/24/03
THE ROGUE AUDIO MISSION...
At Rogue Audio we design and manufacture vacuum tube amplifiers.
There is fierce competition in this market and we will only survive by
delivering a superior product and superior service - we have the
engineering and managerial talent to do so. Our core competencies are
electrical, mechanical and production engineering, along with an
overarching passion for excellence. These skills will be used to create
products that offer outstanding value in the high-end marketplace.
Rogue Ninety-Nine
Vacuum Tube Preamplifier
Owners Manual
Rogue Audio amplifiers will always be engineered to provide the four
key elements of audio value:
•
superior sonics
•
high quality and reliability
•
an outstanding appearance
•
an affordable price
Our philosophy is simple - We will never design any amplifier that we
would not purchase for ourselves.
Rogue Audio Inc.
PO Box 1076
3 Marian Lane
Brodheadsville, PA 18322
Vacuum Tube Amplifiers